Upload
valdesf79
View
234
Download
0
Embed Size (px)
Citation preview
ISO 7637-2:2004
Background
Voltage Transient EmissionSetup Requirement
Transient ImmunitySetup upRequirementPerformance Criteria
emi te l AG • Ohmstrasse1 • 94342 Strasskirchen • GERMANY November 2008 Page 2 of 25
Background
ISO 7637-2:2004 Road vehicles – Electrical disturbances from conduction and couplingPart 2: Electrical transient conduction along supply lines only
Transient source in the Car:- Inductive load- Switching process- Sudden interruption of current- energizing the starter -motor circuit of the internal combustion engines- Load dump transient
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 3 of 25
Background
Government, 72/245/EC, 2004/104/EC, 2006/96/ECWorld trade Committee, ECE R10.03Manufacturer Requirement, BMW, GS 95002
Equipment installed on passenger cars and light commercial vehicles
12V or 24V vehicles system
Bench Test Standard
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 4 of 25
Background
VehiclesVehicles
Electrical / Electronical SubassembliesElectrical / Electronical Subassemblies
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 5 of 25
Voltage Transient Emission Test
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 6 of 25
Device generate the conducted emission of transient for the switching process.
All wiring and Device 50mm above the ground plane
Switch Close, Switch Open, Change of State
Slow pulse (ms range or slower) and Fast pulses (ns to ms range)
In 2004/104/EC and ECE R10.03, no switch or no inductive load device is exempted
Voltage Transient Emission Test
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 7 of 25
Voltage Transient Emission Test
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 8 of 25
Voltage Transient Emission Test
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 9 of 25
Voltage Transient Emission Test
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 10 of 25
Transient Immunity Test
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 11 of 25
Susceptibility of Transient Emission
Pulse 1Pulse 2a and Pulse 2bPulse 3a and Pulse 3bPulse 4Pulse 5a and Pulse 5b
Pulses 3a and 3b, 0.5m between terminal and Device and 50mm above the ground plane.
Evaluate the device during and after test.
Pulse 1
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 12 of 25
Simulation of transients due to supply disconnection from inductive loads
Pulse 2a
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 13 of 25
Simulate transients due to sudden interruption of currents in a device connected in parallel with Device due to inductance of wiring harness
Pulse 2b
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 14 of 25
Simulate transients from d.c. motor acting as generators after the ignition is switched off
Pulse 3a
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 15 of 25
Simulation of transients which occur as a result the switching process
Pulse 3b
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 16 of 25
Simulation of transients which occur as a result the switching process
Pulse 4
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 17 of 25
Simulate supply voltage reduction caused by energizing the startSimulate supply voltage reduction caused by energizing the start erer--motor circuit of internal motor circuit of internal combustion engines, excluding spikes associated with startingcombustion engines, excluding spikes associated with starting
Pulse 5a
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 18 of 25
Simulation of the load dump transientSimulation of the load dump transient
Pulse 5b
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 19 of 25
Simulation of the load dump transientSimulation of the load dump transient
E.gE.g UUss** = 80V, U= 80V, Uss
** = 32V for BMW= 32V for BMW
Conducted Transient Immunity for ESA
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 20 of 25
Conducted Transient Immunity for ESA
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 21 of 25
Example criteria from 2004/104/EC
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY
Test pulse numberTest pulse number Immunity test levelImmunity test level Functional status for systemsFunctional status for systems
Related to Immunity related functions
Not related to Immunity related
functions
1 III C D
2a III B D
2b III C D
3a / 3b III A D
4 III B(for ESA which must be operational
during engine start phase)
C(for other ESA’s)
D
November 2008 Page 22 of 25
Immunity Requirements
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY
Class A: all functions of a device or system perform as designed during and after exposure to a disturbance
Class B: all functions of a device or system perform as designed during exposure; however, one or more of them may go beyond the specified tolerance. All functions return automatically to within normal limits after exposure is removed. Memory functions shall remain class A.
Class C: one or more functions of a device or system do not perform as designed during exposure but return automatically to normal operation after exposure is removed.
Class D: one or more functions of a device or system do not perform as designed during exposure and do not return to normal operation until exposure is removed and thedevice/system is reset by simple “operator/use” action.
Class E: one or more functions of a device or system do not perform as designed during and after exposure and cannot be returned to proper operation without repairing or replacing the device/system.
November 2008 Page 23 of 25 emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 24 of 25
emitel AG • Ohmstrasse 1 • 94342 Strasskirchen • GERMANY November 2008 Page 25 of 25